Datasets
Air quality measurements which are collected using devices installed on trams from Helsinki. Three sensor sets have been moving on the streets of Helsinki, while one has been constantly at Helsinki Environmental...
Municipalities
CSV
The dataset shows the areas where the annual limit value for nitrogen dioxide (40 µg/m3) has exceeded or has been in danger of exceeding. In 2022 it was estimated that the annual limit value of nitrogen dioxide will...
Municipalities
SHP
WMS
WFS
You can also access this registry using the API (see API Documentation).